Search Results - "Park, Geonhyeong"

Bilayer-folded lamellar mesophase induced by random polymer sequence by Shin, Minjoong, Kim, Hayeon, Park, Geonhyeong, Park, Jongmin, Ahn, Hyungju, Yoon, Dong Ki, Lee, Eunji, Seo, Myungeun

“…Randomness is perceived in two different extremes, in macroscopic homogeneity and local heterogeneity, but apparently far away from order. Here we show that a…”
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Field-induced orientational switching produces vertically aligned Ti3C2T x  MXene nanosheets by Changjae Lee, Soon Mo Park, Soobin Kim, Yun-Seok Choi, Geonhyeong Park, Yun Chan Kang, Chong Min Koo, Seon Joon Kim, Dong Ki Yoon

“…In this work, authors demonstrate reversible vertical alignment of Ti3C2Tx MXene sheets induced by an applied in-plane electric field. Further modulation of…”
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Security use of bilayer dichroic films made of liquid crystal polymer networks by Park, Geonhyeong, Yoon, Dong Ki

“…We report on bilayer dichroic dye-doped liquid crystal (BDLC) films for patternable color codes, which can be used in anti-counterfeiting applications such as…”
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Periodic Arrays of Chiral Domains Generated from the Self-Assembly of Micropatterned Achiral Lyotropic Chromonic Liquid Crystal by Park, Geonhyeong, Čopar, Simon, Suh, Ahram, Yang, Minyong, Tkalec, Uroš, Yoon, Dong Ki

“…Achiral building blocks forming achiral structures is a common occurrence in nature, while chirality emerging spontaneously from an achiral system is usually…”
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Paintable Physical Unclonable Functions using DNA by Park, Soon Mo, Park, Geonhyeong, Yoon, Dong Ki

“…Controversy over artwork's authenticity is ongoing despite numerous technologies for copyright protection. Artists should build their own ways to protect the…”
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Paintable Physical Unclonable Functions using DNA (Adv. Mater. 35/2023) by Park, Soon Mo, Park, Geonhyeong, Yoon, Dong Ki

“…Physical Unclonable Functions In article number 2302135, Dong Ki Yoon and co‐workers present a framework for the creation of physical unclonable function…”
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Controlling liquid crystal boojum defects on fixed microparticle arrays via capillarity-assisted particles assembly by Yun, Hee Seong, Meijs, Zazo Cazimir, Park, Geonhyeong, Fu, Yutong, Isa, Lucio, Yoon, Dong Ki

“…[Display omitted] Colloidal particles in nematic liquid crystals (LCs) are of high interest for self-assembly of soft matter systems. When two free particles…”
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Pixelated Physical Unclonable Functions through Capillarity-Assisted Particle Assembly by Meijs, Zazo Cazimir, Yun, Hee Seong, Fandre, Pascal, Park, Geonhyeong, Yoon, Dong Ki, Isa, Lucio

“…Recent years have shown the need for trustworthy, unclonable, and durable tokens as proof of authenticity for a large variety of products to combat the…”
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Enhancing Color Gamut with Wavelength‐Selective Polarization Modulation in Chiral Liquid Crystals by Park, Hyewon, Kim, Juyeol, Park, Geonhyeong, Yoon, Dong Ki

“…Abstract Dichroic dye‐doped liquid crystal (LC) films are extensively developed to mimic the polarization‐dependent coloration found in nature, demonstrating…”
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Planar Spin Glass with Topologically Protected Mazes in the Liquid Crystal Targeting for Reconfigurable Micro Security Media (Adv. Mater. 36/2023) by Park, Geonhyeong, Choi, Yun‐Seok, Kwon, S. Joon, Yoon, Dong Ki

“…Topologically Protected Structures In article number 2303077, S. Joon Kwon, Dong Ki Yoon, and co‐workers present a cutting‐edge security system based on liquid…”
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Nanoscratch-Directed Self-Assembly of Block Copolymer Thin Films by Kim, Dong Hyup, Suh, Ahram, Park, Geonhyeong, Yoon, Dong Ki, Kim, So Youn

“…Directed self-assembly (DSA) of block copolymer (BCP) thin films is of particular interest in nanoscience and nanotechnology due to its superior ability to…”
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Universal Strategy for Inorganic Nanoparticle Incorporation into Mesoporous Liquid Crystal Polymer Particles by Lee, Geunjung, Park, Geonhyeong, Park, Jesse G., Bak, Yeongseo, Lee, Changjae, Yoon, Dong Ki

“…Developing inorganic–organic composite polymers necessitates a new strategy for effectively controlling shape and optical properties while accommodating guest…”
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Field-induced orientational switching produces vertically aligned Ti3C2Tx MXene nanosheets by Lee, Changjae, Park, Soon Mo, Kim, Soobin, Choi, Yun-Seok, Park, Geonhyeong, Kang, Yun Chan, Koo, Chong Min, Kim, Seon Joon, Yoon, Dong Ki

“…Controlling the orientation of two-dimensional materials is essential to optimize or tune their functional properties. In particular, aligning MXene, a…”
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Correction to “Planar Spin Glass with Topologically Protected Mazes in the Liquid Crystal Targeting for Reconfigurable Micro Security Media” by Park, Geonhyeong, Choi, Yun‐Seok, Kwon, S. Joon, Yoon, Dong Ki

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Generation of 2D DNA Microstructures via Topographic Control and Shearing by Park, Soon Mo, Park, Geonhyeong, Cha, Yun Jeong, Yoon, Dong Ki

“…2D DNA microstructures are fabricated by applying the shear force to the DNA solution on the microchannels. The “U”‐like textures of DNA are clearly observed…”
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Planar Spin Glass with Topologically Protected Mazes in the Liquid Crystal Targeting for Reconfigurable Micro Security Media by Park, Geonhyeong, Choi, Yun‐Seok, Kwon, S. Joon, Yoon, Dong Ki

“…The planar spin glass pattern is widely known for its inherent randomness, resulting from the geometrical frustration. As such, developing physical unclonable…”
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On-Demand Aligned DNA Hydrogel Via Light Scanning by Kim, Juri, Choi, Yun-Seok, Park, Geonhyeong, Kim, Mingeun, Myung, Jin Suk, Choi, Woo Jin, Park, Soon Mo, Yoon, Dong Ki

“…DNA is an anisotropic, water-attracting, and biocompatible material, an ideal building block for hydrogel. The alignment of the anisotropic DNA chains is…”
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Fabrication of Bilayer Dichroic Films Using Liquid Crystal Materials for Multiplex Applications by Park, Geonhyeong, Choi, Yun-Seok, Yun, Hee Seong, Yoon, Dong Ki

“…A bilayer dichroic-doped liquid crystal (BDLC) film is fabricated via the uniaxial alignment method and a photopolymerization process. It is found to be useful…”
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Utilization of Physical Anisotropy in Metal–Organic Frameworks via Postsynthetic Alignment Control with Liquid Crystal by Bak, Yeongseo, Park, Geonhyeong, Hong, Taegyun, Lee, Changjae, Lee, Hongju, Bae, Tae-Hyun, Park, Jesse G., Yoon, Dong Ki

“…Metal–organic frameworks (MOFs) represent crystalline materials constructed from combinations of metal and organic units to often yield anisotropic porous…”
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On‐Demand Tunable Electrical Conductance Anisotropy in a MOF‐Polymer Composite (Small 18/2024) by Hong, Taegyun, Lee, Changjae, Bak, Yeongseo, Park, Geonhyeong, Lee, Hongju, Kang, Seunguk, Bae, Tae‐Hyun, Yoon, Dong Ki, Park, Jesse G.

“…Metal–Organic Frameworks The post‐synthetic alignment of conductive Cu3(HHTP)2 crystals by an electric field is used for the on‐demand pattern generation and…”
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